MEMBRANE-ELECTRODE ASSEMBLY, METHOD FOR PRODUCING THE SAME AND SOLID POLYMER FUEL CELL

摘要

Disclosed is a membrane-electrode assembly (MEA) comprising an anode catalyst layer and a cathode catalyst layer arranged opposite to each other, and a polymer electrolyte membrane arranged between the anode catalyst layer and the cathode catalyst layer. Also disclosed is a fuel cell comprising such a membrane-electrode assembly. At least one of the anode catalyst layer and the cathode catalyst layer comprises a catalyst carrying body wherein at least one catalyst material selected from platinum and alloys containing platinum is supported by a carrier, and a hydrocarbon polymer electrolyte. The catalyst ratio in the catalyst carrying body is not less than 60% by mass.